staging: rtl8723bs: fix camel case in struct wlan_bcn_info

fix camel case in struct wlan_bcn_info all over the driver.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/52c74cf0183da44f2ddaac2607e4b7ccaf9abd91.1626874164.git.fabioaiuto83@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>